15 Unique Cloud Formations

Looking up the sky can be fascinating because of the different cloud formations. Clouds come in all sort of sizes and shapes and below are the top 15 cloud formations which you might have interest to know.

Morning Glory Cloud

One of the rare cloud formation that can be observed and predicted in one or more regular basis in  Northern Australia’s Gulf of Carpentaria is the Morning Glory cloud. Specifically in Burketown, the Morning Glory clouds can be observed from September to November.

Morning Glory Clouds
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Pileus clouds

Pileus is made of horizontal, small, and altostratus clouds that appear atop of the cumulus clouds. The hood-like appearance of the cloud is an indicator of severe weather

Pileus clouds
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Polar stratospheric clouds (PSCs)

Nacreous cloud is another term for this cloud formation in the winter   polar stratosphere at 49,000–82,000 ft altitudes. This type of clouds supports chemical reaction that contributes to the ozone depletion.

Polar stratospheric nacerous clouds
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Actinoform clouds

It is a group of marine low clouds with distinct shape that are hard to see by the naked eyes. Actinoform clouds usually form leaf-like pattern and spread out over 190 miles across the sky. This type of cloud is mainly composed of stratocumulus clouds which can be observed above the Indian Ocean and East Pacific.

Actinoform clouds
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Wave windows clouds

Wave windows formation is considered as atmospheric standing waves which remained fixed in position. Cloud formation occurs with sufficient vertical displacement and adequate moisture in the atmosphere.

Wave windows
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